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    <p class="red bigfont">段落1</p>
    <p class="red underline">段落2</p>
    <p class="bigfont underline">段落3</p>
    <p class="bigfont underline">段落3</p>
    <p class="bigfont underline">段落3</p>
    <p class="bigfont underline">段落3</p>

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